Information
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Audit Title
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Customer/Client
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Site Name
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Site Number
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Conducted on
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Prepared by
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Location
TOWER / SYSTEM INFORMATION
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System Name?
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Cooling tower or Evaporative Condensor?
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How many towers make up the system?
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Are all towers clearly identified and labelled?
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Take Photographs of towers and identification.
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Cooling Tower make?
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Cooling tower model?
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Cooling tower serial number?
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System Volume (kL) ( estimated or calculate, refer to maintenance manual)?
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Materials of construction - Cooling tower basin?
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Materials of construction - condenser water pipe work?
- Mild Steel
- Stainless Steel
- Fibre Glass
- Galvanised Steel
- Copper
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Take photographs of basin and pipe work indicating current condition.
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Is the EC clearly identified and labelled?
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Take Photographs of EC and associated pipe work indicating current condition.
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EC serial number?
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EC manufacturer/make
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EC Model?
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EC Serial number?
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System Volume?
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Materials of construction - Basin and tower?
- Mild Steel
- Stainless Steel
- Fibre Glass
- Galvanised Steel
- Copper
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Is the WHS cooling tower certificate of registration displayed (Qld) OR DHS Registration number (Vic) ?
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All no answers require a follow up action to be recommended. Add comments and actions required below.
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Comments and actions required.
MAINTENANCE AND OPERATIONS MANUALS
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Are CURRENT MSDS for each product on site located in the maintenance manual?
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Are laminated MSDS located at chemical storage area?
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Are current SMWS located in the maintenance manual?
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Are all cooling tower cleaning and service reports on site?
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Is the service register/log sheet up to date?
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Does the customer / site have a specific log book requirement?
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Is the Technician completing the BES requirements. (Ie all log entries are up to date?)
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Photograph last pages (2) of BES log.
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Is the maintenance manual suitably located?
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Is there a weather proof cabinet for the maintenance manual?
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Log book location?
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Photograph of log book on site.
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Are the test results for the last three months within range?
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Has the technician made the correct adjustments?
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Comments?
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Are the past 12 months micro laboratory test certificates in the manual?
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Is the contact information in the manual current and correct?
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Update information:
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Comments on manuals and improvements proposed?
STAGNANT WATER RISK
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How many condenser water pumps are installed?
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What is the changeover frequency and control method used to ensure these pumps are not dead legs?
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Is there a balance line?
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Can the drain line be easily drained and/or flushed?
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Does the balance line have by-pass flow through it to ensure it is not a dead leg?
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Take photographs of the balance lines and drain points.
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Are there any dead legs in the system?
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Take photographs of the dead legs in the system.
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Stagnant water comments and improvements recommended?
SEASONAL DEADLEGS
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Are there chiller units?
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Number of chillers?
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Take photos of the chillers.
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Is there any impact on water flow through the chillers due to this operation or winter cycles?
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What is the Chillers cycle of operation ( from mechanical contractor or building manager)?
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Is the system a combination main chiller plant and package units?
OHS REQUIREMENTS
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Is the electrical switch board clearly labelled to enable the plant to be safely shut down?
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Is there a chemical spill kit available near the chemical storage area?
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Is there an emergency eye washing facility in close proximity(<5m) to the chemical dosing systems?
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Are PPE and hazard signs installed(chemical and others)?
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Does the site require a risk management plan due to location or other concerns?(kitchen exhaust, smoking areas, air intake)
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Are all chemicals appropriately bunded?
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Are all chemical drums and bundling correctly labelled?
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Take Photographs of OHS check list items.
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Comments and recommendations for OHS conditions and improvements.
TOWER CLEANING
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Is a detailed shut down and start up procedure available on site?
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Is there safe access to the cooling tower for cleaning?
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Is there safe access to the top of the tower?
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Why is it unsafe?
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Take photos representing the lack of access.
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From visual inspection, are the drift eliminators in good condition?
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Take photographs of drift eliminators.
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Are there any water leaks evident from the tower?
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Describe leaks?
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Take photographs of reported leaks.
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Describe the general cleanliness of the CT internal surfaces?
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Describe general condition of the tower internals?
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Take photographs of tower internals.
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Is the water distribution through the cooling tower balanced?
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Describe general condition and cleanliness of the cooling tower components?
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Photograph tower components to demonstrate current condition, include air intake louvres, splash guards and tower basin etc
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Comments?
DOSING EQUIPMENT
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Describe the general cleanliness of the tower and surrounds?
- good
- satisfactory
- unsatisfactory
- fouled
- heavy scale
- corrosion evident
- dirty
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Photograph tower and surrounds.
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Comments?
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Equipment make?(Aquarius, Advantage, Digi etc)
- Digichem
- Advantage
- Aquarius
- Hoffman
- LMI
- Prominent
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Dosing controller model?(Digi AB, Digichem 2, Aquagard, Megatron SS etc)
- Digi AB
- Digi 2
- AT522
- Aquagard
- Megatron SS
- CTH1
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Take photograph of dosing controller.
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CHECK OPERATION OF ALL EQUIPMENT AND REPORT BELOW.
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Biocides A pump tested, all operational?
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Biocide B pump tested and operational?
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Inhibitor dosing pump tested and operational?
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Bromine tablet solenoid valve tested and operational?
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Conductivity controller and solenoid tested and operational?
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Is there a stand alone circulation pump installed for the dosing controller?
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Circulation pump checked and operational?
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Is the tower fitted with a side steam filter?
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Record type of filter?
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Take photograph/s of the side steam filter installations?
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Does the system have a dedicated sample point?
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Is the sample point clearly identified or labelled?
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Take photograph of the sample point?
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Is there a corrosion rack installed?
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Is the coupon rack installed a 2 or 4 station rack?
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Is the flow through the rack measurable? Ie is there a flow meter
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Take photographs of corrosion racks and flow meters?
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Are their chemical dosing pots for the closed systems?
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Are the dosing pots clearly labelled?
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Are the pipes feeding the dosing pot clearly identified as heating or chilled water?
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Take a photograph of each dosing pot and pipe work.
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Are there water meters installed on the cooling towers?
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Are there bleed and or make up meters?
- bleed meters
- make up meters
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Is there a meter on each tower?
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Are we required to record the meter readings?
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Comments and recommendations?
DOSING EQUIPMENT SETTING
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Conductivity set point?
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Conductivity reading today?
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Take photograph of conductivity screen?
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ORP set point
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ORP reading today?
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Take photograph of ORP readout screen.
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Inhibitor dosing pump and controller settings?
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Biocides A (Primary) pump and timer settings?
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Biocides B (secondary) pump and timer settings?
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Does the system have a dispersant pump?
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Dispersant pump and control settings?
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Dispersant product in use?
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Per bleed settings?
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Bleed lockout settings?
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Does the controller have automatic disinfection via ORP?
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Record frequency?
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Record duration?
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ORP or mV setting?
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Comments and recommendations?
END OF REPORT, SIGNATURES
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Signature: